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Aquasant Messtechnik AG
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3.3.3
Leakage monitoring
Possible applications: Monitoring dome shafts, retention basins, and troughs
Storage
tank
External
acknowledgment
AF
SPS
97%
AS2.0 D24
24 VDC
230 VAC
C
B
A
A2
A1
AS2.2
D24
HL-Alarm
C
B
A
T-BUS
RS485
bl
sw
gr
bl
sw
gr
Reset
4
3
HL alarm NPN OC
acknowledgment / HL alarm / delayed delay / Fault
message redundant
AF * overfill protection
Relay de-energized
in alarm condition
AF * Leakage monitoring
Relay 3 Relay 1.1 Relay 1.2 OC 2 Relay 4
Figure 4 Using leakage monitoring - schematic
3.3.4
Oil detection monitoring
Possible applications: Monitoring rainwater in a basin for heavy or light oil leaks
Storage
tank
LS21.1 * surface oil detection
Leakage monitoring
External
acknowledgment
LS
SPS
97%
AS2.0 D24
24 VDC
230 VAC
C
B
A
A2
A1
AS2.2
D24
HL-Alarm
C
B
A
RS485
T-BUS
RS485
bl
sw
gr
bl
sw
gr
Reset
4
3
AS2.2
D24
HL-Alarm
C
B
A
T-BUS
RS485
bl
sw
gr
AF
Relay de-energized
in alarm condition
AF * overfill protection
AF * Leakage monitoring
HL alarm NPN OC
acknowledgment / HL alarm / delayed delay / Fault
message redundant
Relay 3 Relay 1.1 Relay 1.2 OC 2 Relay 4
Figure 5 Using oil detection with LS - schematic